请教PP语法题目

lion17

1。the (stark), boxy forms of european modernist   (architectural) dominated united states cityscapes in the (building boom) (following) the second world war.
答案是c，应该怎么改？我觉得B好像也有问题

2。 subjects of cecilia beaux's paintings included   (prominent) figures in government, the arts, and  (financial) , but her (strongest) works are portraits (of family) members and friends.
我觉得B有问题，答案怎么是C

3.(Importance) as foods,(carbohydrates) supply energy and (are) used (to make) fats.
A错，应该怎么改？